Fight For Air Climb • Climb 200 feet — 372 steps — to the top of the Zions Bank tower in downtown Salt Lake City to raise funds for the American Lung Association to help people with lung diseases who struggle to breathe each day. More information, www.lungutah.org.

When: 8 a.m. Saturday

Where: Zions Bank, 1 S. Main St.

Registration: $35, but participants are also encouraged to raise a minimum of $100 in donations

When and where: 9 a.m. Saturday at Pelican Bay Marina, Utah Lake, Saratoga Springs; and 10 a.m. Saturday at the St. George City Pool, St. George

Registration: $10 plus $40 minimum in pledges/donations

Polar Bear Whiteout • It's a party for polar bears at Hogle Zoo. Learn about polar bears while doing crafts and playing games. Wear white to get $1 off admission. More information, www.hoglezoo.org/event_registration/?ee=114.

When: 10a.m.-1 p.m. Saturday (See Rizzo the polar bear up close during a special demonstration at 10:45 a.m. and see her enjoy fish at 1:15 p.m.)